On Mon, Apr 19, 2021 at 5:27 PM Ed Greshko <ed.greshko@greshko.com> wrote:

On 20/04/2021 07:31, Jack Craig wrote:
>
>
> On Mon, Apr 19, 2021 at 3:11 PM Ed Greshko <ed.greshko@greshko.com <mailto:ed.greshko@greshko.com>> wrote:
>
> On 19/04/2021 03:18, Jack Craig wrote:
> >
> > On Fri, Apr 16, 2021, at 10:56 AM, Ed Greshko wrote:
> > > On 16/04/2021 17:19, Ed Greshko wrote:
> > > > On 16/04/2021 10:35, Jack Craig wrote:
> > > >> First I get my static IP from AT&T actually a block of eight addresses of which only the first do they agree to pass through.
> > > >>
> > > >
> > > > BTW, if you are hosting the DNS server and if your DNS server has the IP address of 108.220.213.121 then
> > > > this could be a problem.
> >
> > *
> > *
> > *would you expand on this comment? i think this is an issue,... thx..*
>
> I should have mentioned you should check your named.conf. By default it contains
>
> options {
>           listen-on port 53 { 127.0.0.1; };
>
>
> i had listen to localhost & external ip, trimmed to just localhost
>
>           listen-on-v6 port 53 { ::1; };
>
> meaning it only is listening on the loopback interface.
>
>
> i have uncovered some ns info issues with my ip provider, att, dns config issues...
> working them out; you guys are a god-and tho! ;) thx!!!
>

Maybe you're not yet up and running, but FWIW, port 53 continues to show as
closed for both TCP and UDP at 108.220.213.121.

Also, FWIW, I just installed bind on a F33 test VM and changed named.conf to contain

options {
         listen-on port 53 { 127.0.0.1; };
         listen-on-v6 port 53 { 2001:b030:112f:2::53; ::1; };

The VM is accessible via IPv6 but not IPv4. And then running nmap from an external system.

PORT   STATE SERVICE VERSION
53/tcp open domain (generic dns response: NOTIMP)
| fingerprint-strings:
|   DNSVersionBindReqTCP:
|     version
|_    bind

--
Remind me to ignore comments which aren't germane to the thread.

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